Absolutely wrong. Infotainment systems in cars these days typically run on Linux, not a hard realtime OS, and are definitely not any kind of safety-critical sy

Absolutely wrong. Infotainment systems in cars these days typically run on Linux, not a hard realtime OS, and are definitely not any kind of safety-critical system whatsoever. There's no need for it either; they're isolated from critical systems on the car, in case there's a problem (and there frequently is).